Keith,
here you can see the main differences:
1. Cone head, No 1, thin waists, wider pu spacing,
short tailpieces, front horn 2 master volumes with
toggle to quickly switch between two settings,
pu selector.
2. No 2, basically the same as No1, but with narrower
pu spacing
3. V head Spyder, more traditional wider body shape,
long tailpieces, front horn master volume and pu
selector